* src/plugins/PatchNames.py: add the ability to detect

common surname prefixes
* src/plugins/patchnames.glade: clean up description
* src/plugins/TimeLine.py: detect invalid date range in
report to prevent divide by zero error.


svn: r3760

src/plugins/TimeLine.py

@@ -157,6 +157,13 @@ class TimeLine:
 
         (low,high) = self.find_year_range()
 
+        if low == high:
+            if self.standalone:
+                self.d.close()
+            ErrorDialog(_("Report could not be created"),
+                        _("The range of dates chosen was not valid"))
+            return
+
         st_size = self.name_size()
 
         font = self.d.style_list['TLG-Name'].get_font()